Air Excellence Heating and Cooling is one of the leading service providers for your HVAC needs, serving the greater St. Louis area for over 30 years. Our company is a local, woman-owned business devoted to serving residential clients throughout the St. Louis area. Our dedication to providing quality service comes all the way from the top, with owner Bette Derges, and it is exemplified by each employee who understands that our customers’ needs are our highest priority.